14481651981 has 8 divisors (see below), whose sum is σ = 19312885504. Its totient is φ = 9652426560.

The previous prime is 14481651979. The next prime is 14481652013. The reversal of 14481651981 is 18915618441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14481651981 - 2¹ = 14481651979 is a prime.

It is a super-2 number, since 2×14481651981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14481651981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14481651901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485116 + ... + 514101.

It is an arithmetic number, because the mean of its divisors is an integer number (2414110688).

Almost surely, 2^14481651981 is an apocalyptic number.

It is an amenable number.

14481651981 is a deficient number, since it is larger than the sum of its proper divisors (4831233523).

14481651981 is an equidigital number, since it uses as much as digits as its factorization.

14481651981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004051.

The product of its digits is 276480, while the sum is 48.

The spelling of 14481651981 in words is "fourteen billion, four hundred eighty-one million, six hundred fifty-one thousand, nine hundred eighty-one".